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horrorfan [7]
3 years ago
15

Hiii please help!! thank u

Mathematics
2 answers:
Tomtit [17]3 years ago
7 0
The correct answer is B
asambeis [7]3 years ago
5 0
The answer is B Bc it’s not a true proportion
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Help asap please info in pic
SVETLANKA909090 [29]
D will be the answer shifter left 1 point
7 0
3 years ago
What happens to the mode of the data set shown below if the number 8 is added to the data set?
Dmitrij [34]

Answer:

c

Step-by-step explanation:

right now 15 is the mode because there are 3 of them

if we made it so that there was another 8 there would also be 3 of them

this would mean that there are two modes

6 0
2 years ago
Given the relationship x2 + 3y2 =12, with y > 0 and dx, dt = 2 units/min., find the value of dy, dt at the instant y = 1 unit
matrenka [14]
\bf x^2+3y^2=12\implies \stackrel{chain~rule}{2x\cfrac{dx}{dt}}+3 \stackrel{chain~rule}{\left(2y\cfrac{dy}{dt}\right)}=0
\\\\\\
2x\cfrac{dx}{dt}+6y\cfrac{dy}{dt}=0
\implies 
6y\cfrac{dy}{dt}=-2x\cfrac{dx}{dt}\implies \cfrac{dy}{dt}=\cfrac{-2x\frac{dx}{dt}}{
6y\frac{dy}{dt}}
\\\\\\
\boxed{\cfrac{dy}{dt}=-\cfrac{x\frac{dx}{dt}}{3y}}\\\\
-------------------------------

\bf \textit{now, when y = 1, what is \underline{x}?}\qquad x^2+3y^2=12\implies x^2+3(1)^2=12
\\\\\\
x^2=9\implies x=\sqrt{9}\implies x=3\\\\
-------------------------------\\\\
\begin{cases}
y=1\\
x=3\\
\frac{dx}{dt}=2
\end{cases}\implies \cfrac{dy}{dt}=-\cfrac{3\cdot 2}{3\cdot 1}\implies \cfrac{dy}{dt}=-2
7 0
3 years ago
There are 360 degrees in a circle. How many arc seconds will be in 96 % of a circle?
Umnica [9.8K]
1,244,160 arc-seconds
7 0
3 years ago
Use the standard normal distribution to find P(-2.25 < z < 1.25)
Ede4ka [16]

Here we have to find the probability P(-2.25. Now express the probability in terms of standard normal cumulative distribution function. That is \Phi(x)=P(z.

P(-2.25

Now you can look up the probability from the standard normal tables. Its value is

P(-2.25

3 0
3 years ago
Read 2 more answers
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